This is allium senescens. I bought it unlabeled at a plant sale four or five years ago and have since divided it up and placed it in every impossible spot in my yard–sunny spots in my super-sandy soil that are drained to a crisp by large trees.

No complaints, ever. This is not a bulbous allium, but a clump-former that's best divided with a shovel. The flowers are numerous but by no means spectacular, in a ghostly purple-white color. However, the strappy foliage and round shape of the plant are just nifty, offering crisp contrast to everything else in my borders.

I looked at your blog as I do every morning and
lo and behold , I see the plant that I have growing
in my garden that just showed up! I figured
it was some sort of an allium and it must have
been mixed in with some drumstick allium I
ordered from a nursery. Thanks for the identification!
Love the plant and love happy accidents in the
garden!

You might think that people can grow anything in their yards. This is not so, I must have the brownest thumb of all because I can not get anything to stay alive. I have been reading books and books about it, maybe this will help. I would love for my place to look like yours.

This allium showed up in my garden too, and I’m glad I didn’t weed it out. I really like it and plan to divide it and move it into another garden bed where it would fit very well. Thanks to your post, at last I know which allium it is.

I know I’m going to be in the minority here but this plant is driving me nuts. I’m ready to pull mine up. Everything hides under the leaves. Every time i go to water or do anything close some creature pops out and gives me a scare.